NEURONAL DEGENERATION IN SUBACUTE NECROTIZING ENCEPHALOMYELOPATHY (LEIGHS DISEASE) - CASE REPORT

We report clinical, radiological and pathological findings in a 5-year -old girl who died of subacute necrotizing encephalomyelopathy (SNE) a fter 4 weeks of illness. Autopsy revealed endothelial swelling and vac uolar degeneration of the neuropil in the brain, brain stem and cerebe llum. In addition, the affected areas showed degeneration of the neuro ns which was different from anoxic nerve cell damage both with regard to morphological picture and topographical distribution. This neuronal degeneration was probably due to the underlying metabolic defect in S NE per se and resembled in several aspects the nerve cell changes seen in the thalami and inferior olives in active Wernicke's encephalopath y. It is our opinion that more attention should be paid to the nerve c ell degeneration in SNE rather than focusing on the relative preservat ion of these cells.